Patent classifications
H02J3/06
Electricity Distribution System for a Domestic Installation, Method for Managing such an Electricity Distribution System
An electrical distribution system includes a distributor designed to distribute an electric current in an electrical installation, the distributor being configured to be connected to a distribution grid, to at least one secondary electrical power supply source and to a plurality of the electrical loads . An electronic control device is configured to manage power supply parameters of at least some of the electrical loads to reduce the electric current consumed and/or to manage operating parameters of at least some of the secondary electrical power supply sources in order to reduce the electric current delivered by these sources, so as to comply with a current threshold dictated by a protection element and/or by the distributor .
Electricity Distribution System for a Domestic Installation Comprising Multiple Electrical Sources
An electricity distribution system for a domestic installation including multiple electrical sources. The system includes a connecting device arranged for distributing an electric current in the installation, from sources including an electricity distribution network and at least one auxiliary electrical supply source, to at least one electricity consuming load, the connecting device including at least one linear segment, each linear segment including a plurality of electrical conductors adapted to route the electric current along an electrical conduction path. The system further includes a switching device principal configured for switching between two states which, respectively, allow or prevent the flow of electric current from the electricity distribution network to the connecting device, an auxiliary switching device for each auxiliary electrical supply source being configured for switching between two states which, respectively, allow or prevent the flow of electric current from the associated auxiliary electrical supply source to the connecting device. The system further includes at least one load switching device configured for switching between two states which, respectively, allow or prevent the flow of electric current from the connecting device to at least one electricity consuming load, the or each load switching device being electrically connected to the connecting device at an intermediate connection point between said first connection point and the or each second connection point.
Decentralized hardware-in-the-loop scheme
A method tests the configuration of an aggregated DERs system using distributed asset managers in a decentralized hardware-in-the-loop (“HIL”) scheme. The managers contain the model of the asset they are meant to control. The method programs an asset manager with a model of a DERs asset. A plurality of asset managers are connected to a central controller. The plurality of asset managers are also connected to a simplified hardware-in-the-loop platform. The simplified HIL platform is configured to solve a network model, a load model, a non-controllable asset model, and a grid model. The method tests the DERs system control structure by using: (a) the simplified HIL platform to solve the network model, the load model, the non-controllable asset model, and the grid model, and (b) the asset manager to solve the model of the DERs asset, without any simulation between the central controller and the distributed asset managers.
Decentralized hardware-in-the-loop scheme
A method tests the configuration of an aggregated DERs system using distributed asset managers in a decentralized hardware-in-the-loop (“HIL”) scheme. The managers contain the model of the asset they are meant to control. The method programs an asset manager with a model of a DERs asset. A plurality of asset managers are connected to a central controller. The plurality of asset managers are also connected to a simplified hardware-in-the-loop platform. The simplified HIL platform is configured to solve a network model, a load model, a non-controllable asset model, and a grid model. The method tests the DERs system control structure by using: (a) the simplified HIL platform to solve the network model, the load model, the non-controllable asset model, and the grid model, and (b) the asset manager to solve the model of the DERs asset, without any simulation between the central controller and the distributed asset managers.
Active Distribution Network Physics-Information Fusion Control Method for a Hybrid System Model
The present invention provides an active distribution network physics-information fusion control method for a hybrid system model includes an initialization time being a starting time, predicting power output and load of a feeder intermittent distributed power supply within a control time period T, calculating a feeder exchange power deviation variation ΔP(t) during the control time period, if being a fixed distribution coefficient, and establishing a hybrid system model for feeder power coordinated control; if being a rolling distribution coefficient, an exchange power P(t) of the control region at time t being obtained, generating a distribution coefficient matrix W(t), and establishing the hybrid system model of the said feeder power coordinated control; confirming a control objective function min J, converting it into a MIQP, obtaining a full period control quantity; selecting a first control quantity P of the optimized control sequence, sending the first control quantity P to the control device.
System of critical datacenters and behind-the-meter flexible datacenters
Systems include one or more critical datacenter connected to behind-the-meter flexible datacenters. The critical datacenter is powered by grid power and not necessarily collocated with the flexboxes, which are powered “behind the meter.” When a computational operation to be performed at the critical datacenter is identified and determined that it can be performed at a lower cost at a flexible datacenter, the computational operation is instead routed to the flexible datacenters for performance. The critical datacenter and flexible datacenters preferably shared a dedicated communication pathway to enable high-bandwidth, low-latency, secure data transmissions.
System of critical datacenters and behind-the-meter flexible datacenters
Systems include one or more critical datacenter connected to behind-the-meter flexible datacenters. The critical datacenter is powered by grid power and not necessarily collocated with the flexboxes, which are powered “behind the meter.” When a computational operation to be performed at the critical datacenter is identified and determined that it can be performed at a lower cost at a flexible datacenter, the computational operation is instead routed to the flexible datacenters for performance. The critical datacenter and flexible datacenters preferably shared a dedicated communication pathway to enable high-bandwidth, low-latency, secure data transmissions.
Power Transfer Between MV Feeders in a Power Distribution Network
A method for transfer of power between medium voltage, MV, feeders via a MV direct current, MVDC, link in a power distribution network is presented. The method is performed in a controller in the power distribution network and includes setting an iteration step value for each of a set of power reference quantities of the MVDC link, and setting an initial value of each of the set of power reference quantities, iteratively changing values of each of the set of power reference quantities, and selecting one changed value of the set of power reference quantities by: changing a present value of each of the set of power reference quantities, one at a time, with the set iteration step value, respectively, into a new value, and measuring a total active power at a substation of the power distribution network for each of the new value, one at a time, and selecting the new value of the one of the set of power reference quantities that provides the lowest measured total active power at the substation, wherein a next iteration is performed with the selected new value as present value for the one of the set of power reference quantities and with the present value for the other of the set of power reference quantities. A controller for transfer of power between MV feeders via a MVDC link in a power distribution network is also presented.
Power Transfer Between MV Feeders in a Power Distribution Network
A method for transfer of power between medium voltage, MV, feeders via a MV direct current, MVDC, link in a power distribution network is presented. The method is performed in a controller in the power distribution network and includes setting an iteration step value for each of a set of power reference quantities of the MVDC link, and setting an initial value of each of the set of power reference quantities, iteratively changing values of each of the set of power reference quantities, and selecting one changed value of the set of power reference quantities by: changing a present value of each of the set of power reference quantities, one at a time, with the set iteration step value, respectively, into a new value, and measuring a total active power at a substation of the power distribution network for each of the new value, one at a time, and selecting the new value of the one of the set of power reference quantities that provides the lowest measured total active power at the substation, wherein a next iteration is performed with the selected new value as present value for the one of the set of power reference quantities and with the present value for the other of the set of power reference quantities. A controller for transfer of power between MV feeders via a MVDC link in a power distribution network is also presented.
Controlling a wind farm
Provided is a method of controlling a wind turbine group having a plurality of wind turbines. Each wind turbine generates electrical power as wind turbine output power for feeding into an electrical supply network. The group feeds a group power output into the network at a grid connection point, and the group power output is substantially formed as the sum of all the turbine power outputs of the group. A maximum group power output is specified for limiting the group power output, a control value for compliance with the maximum group power output is transferred to each wind turbine in the group in order to limit the output power of the respective wind turbine to a maximum value defined by the control value, and a control relationship is determined between potential control values and potential group power outputs using the control relationships and depending on the maximum group power output.